<template>

<div class="app-container">

  <el-form label-width="120px">

    <el-form-item label="讲师名称">

      <el-input v-model="teacher.name"/>

    </el-form-item>

    <el-form-item label="讲师排序">

      <el-input-number v-model="teacher.sort" controls-position="right" min="0"/>

    </el-form-item>

    <el-form-item label="讲师头衔">

      <el-select v-model="teacher.level" clearable placeholder="请选择">

        <!--

          数据类型一定要和取出的json中的一致，否则没法回填

          因此，这里value使用动态绑定的值，保证其数据类型是number

        -->

        <el-option :value="1" label="高级讲师"/>

        <el-option :value="2" label="首席讲师"/>

      </el-select>

    </el-form-item>

    <el-form-item label="讲师资历">

      <el-input v-model="teacher.career"/>

    </el-form-item>

    <el-form-item label="讲师简介">

      <el-input v-model="teacher.intro" :rows="10" type="textarea"/>

    </el-form-item>


    <!-- 讲师头像：TODO -->
<!-- 讲师头像 -->

<el-form-item label="讲师头像">

    <!-- 头衔缩略图 -->

    <pan-thumb :image="teacher.avatar"/>

    <!-- 文件上传按钮 -->

    <el-button type="primary" icon="el-icon-upload" @click="imagecropperShow=true">更换头像

    </el-button>

    <!--

v-show：是否显示上传组件
12
:key：类似于id，如果一个页面多个图片上传控件，可以做区分

:url：后台上传的url地址

@close：关闭上传组件

@crop-upload-success：上传成功后的回调 -->

    <image-cropper

                 v-show="imagecropperShow"

                 :width="200"

                 :height="200"

                 :key="imagecropperKey"

                 :url="BASE_API+'/eduoss/fileoss/upload'"

                 field="file"

                 @close="close"

                 @crop-upload-success="cropSuccess"/>


</el-form-item>

    <el-form-item>

      <el-button :disabled="saveBtnDisabled" type="primary" @click="saveOrUpdate">保存</el-button>

    </el-form-item>

  </el-form>

</div>

</template>


<script>

import teacher from '@/api/edu/teacher'
import ImageCropper from '@/components/ImageCropper'

import PanThumb from '@/components/PanThumb'
export default {
components: { ImageCropper, PanThumb },
  data() {

    return {

      teacher: {

        name: '',

        sort: 0,

        level: 1,

        career: '',

        intro: '',

        avatar: ''

      },
      BASE_API: process.env.BASE_API, // 接口API地址
        imagecropperShow: false, // 是否显示上传组件
      imagecropperKey: 0 ,// 上传组件id
      saveBtnDisabled: false // 保存按钮是否禁用,

    }

  },
    created(){
        console.log('created')
        this.init()
    },
    watch: {
        $route(to, from) {

        console.log('watch $route')

        this.init()

        }

  },
  methods: {
        // 上传成功后的回调函数

  cropSuccess(data) {

    console.log(data)

    this.imagecropperShow = false

    this.teacher.avatar = data.url

    // 上传成功后，重新打开上传组件时初始化组件，否则显示上一次的上传结果

    this.imagecropperKey = this.imagecropperKey + 1

  },


  // 关闭上传组件

  close() {

    this.imagecropperShow = false

    // 上传失败后，重新打开上传组件时初始化组件，否则显示上一次的上传结果

    this.imagecropperKey = this.imagecropperKey + 1

    },
    init(){
         if (this.$route.params && this.$route.params.id) {

        const id = this.$route.params.id

        this.getTeacher(id)

        }else{
            this.teacher={}
        }
    },

    saveOrUpdate() {

        if(!this.teacher.id){
              this.saveData()
        }else{
            this.updateTeacher()
        }
      //this.saveBtnDisabled = true

    

    },
    //回显
    getTeacher(id){
        teacher.getTeacherInfo(id).then(
            response=>{
                this.teacher=response.data.eduTeacher
            }
        )
    },
    //更新
    updateTeacher(){
        teacher.updateTeacher(this.teacher).then(response => {

        return this.$message({

            type: 'success',

            message: '修改成功!'

        })

        }).then(resposne => {

        this.$router.push({ path: '/teacher/table' })

        })  
    },
    // 保存

    saveData() {
       teacher.addTeacher(this.teacher).then(response => {

      return this.$message({

        type: 'success',

        message: '保存成功!'

      })

    }).then(resposne => {

      this.$router.push({ path: '/teacher/table' })

    }).catch((response) => {

      // console.log(response)

      this.$message({

        type: 'error',

        message: '保存失败'

      })

      })
    }


  }

}

</script>